Lifter for laundry treating apparatus

ABSTRACT

A lifter for a laundry treating apparatus includes a first member mounted at an inner side of a drum; and a second member mounted on the first member and protruded toward an inside of the drum, wherein the first member includes a hook protruded and formed along a circumference of the first member, at least part of which is disposed to cover an inner circumferential surface of the drum when inserted into a fastening hole of the drum and then slid in one direction; and a shield protruded and formed at an inner side of the first member and configured to completely cover the fastening hole when the hook is inserted into the fastening hole and then slid in one direction.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This is a Divisional Application of U.S. application Ser. No.15/398,921, filed on Jan. 5, 2017, which, pursuant to 35 U.S.C. §119(a), claims the benefit of the earlier filing date and the right ofpriority to Korean Application No. 10-2016-0001209, filed on Jan. 5,2016, the contents of each of which is incorporated by reference hereinin its entirety.

BACKGROUND 1. Field

The present disclosure relates to a lifter used for a laundry treatingapparatus.

2. Background

A laundry treating apparatus may allow clothes, bedding, and the like(hereinafter, referred to as laundry) to be placed into a drum to removecontamination on laundry. The laundry treating apparatus may perform theprocesses of washing, rinsing, dehydration, drying and the like. Thelaundry treating apparatus may be divided into a top loading type and afront loading type based on the method by which laundry is placed intothe drum. A front loading type washing machine may be referred to as adrum washing machine.

The laundry treating apparatus may be typically configured to include abody that forms an external appearance, a tub accommodated into thebody, a drum rotatably mounted within the tub to accept laundrythereinto, and a detergent supply apparatus configured to supplydetergent into the drum. When the drum is rotated by a motor in a statethat washing water is supplied to laundry accommodated into the drum,dirt on the laundry may be removed by a friction between the drum andthe washing water.

A lifter configured to help the washing of laundry by the rise and fallof the laundry during the rotation of the drum may be located on aninner circumferential surface of the washer drum. The lifter may helpthe washing of laundry while lifting up and then dropping the laundry asthe drum rotates after putting detergent, washing water and laundry intothe drum. The lifter may be located within the drum to prevent thedamage of laundry, reduce water usage, and cause knocking, rubbing, andwashing of the laundry. The lifter may be attached to an innercircumferential surface of the drum to accommodate water into an innerspace of the lifter and then perform the role of spraying water tolaundry within the drum.

A lifter in the related art may be typically coupled to the drum throughan additional fastening member, thereby causing a performancedeterioration of the lifter due to a defect or failure of the fasteningmember. Furthermore, water introduced into the lifter may be distributedthrough a fastening portion between the drum and the lifter, therebycausing unnecessary discharge of washing water.

Consequently, it may be required to have a lifter with a structurecapable of preventing water accommodated into the lifter from beingdischarged through a coupling portion between the drum and the lifter aswell as not causing the performance deterioration of the lifter due to acoupling between the drum and the lifter. The above references areincorporated by reference herein where appropriate for appropriateteachings of additional or alternative details, features and/ortechnical background.

BRIEF DESCRIPTION OF THE DRAWINGS

The embodiments will be described in detail with reference to thefollowing drawings in which like reference numerals refer to likeelements wherein:

FIG. 1 is a perspective view illustrating the entire structure of alaundry treating apparatus;

FIG. 2 is a perspective view illustrating a lifter attached to an innercircumferential surface of a drum;

FIG. 3 is an exploded view illustrating the internal structure of a drumincluding the drum and a lifter attached to the drum;

FIG. 4 is a perspective view in which the lifter is seen from an insideof the drum;

FIG. 5 is an exploded view illustrating the entire structure of thelifter;

FIG. 6 is a perspective view illustrating a first member constitutingthe lifter;

FIG. 7 shows views illustrating a shape in which a protruding portion ofa second member is inserted into a mounting hole of the first member(shown on top with label (a)); a shape in which a protruding portion ofa second member is inserted and coupled to a mounting hole of the firstmember (shown in the middle with label (b)); and a shape in which aprotruding portion of a second member is inserted into a mounting holeof the first member and then bent (shown on bottom with label (c));

FIG. 8 illustrates a shape in which the lifter is coupled to the drum;

FIG. 9 shows views illustrating a shape in which a hook portion of thefirst member is inserted into a fastening hole of the drum (shown on topleft with label (a)); a shape in which the hook portion is slid (shownon top right with label (b)); a shape in which the hook portion is slidand then coupled to the drum (shown in the middle with label (c)); and ashape in which the lifter is coupled to an inner circumferential surfaceof the drum is seen from an outside of the drum (shown on bottom withlabel (d));

FIG. 10 illustrates a shape in which the lifter is coupled to an innercircumferential surface of the drum and its enlarged shape;

FIG. 11 is a view in which the drum is seen from a front side of thebody; and

FIG. 12 illustrates a shape in which washing water is introduced intothe lifter and then discharged into the drum through a washing waterdischarge hole.

DETAILED DESCRIPTION

Referring to FIG. 1, the laundry treating apparatus may include alaundry treating apparatus body 11 configured to form an appearance, adrum 20 rotatably mounted within the body 11 to put laundry thereinto, alifter 100 provided within the drum 20, a door 12 provided on a frontsurface of the body 11, and a detergent inlet cover 13 covering adetergent inlet for adding detergent located at a lower portion of thebody 11. Furthermore, the laundry treating apparatus may include a duct,a heat exchanger, and the like therein to circulate air to dry laundrywithin the drum.

The lifter 100 may be provided on an inner circumferential surface 22 ofthe drum 20 to help the washing of laundry due to the rise and fall ofthe laundry during the rotation of the drum 20. The lifter 100 may helpthe washing of laundry while lifting up and then dropping the laundry asthe drum 20 rotates after putting detergent, washing water, and laundryinto the drum 20. The lifter 100 may prevent laundry within the drum 20from getting tangled to prevent the damage of laundry, reduce waterusage, and cause knocking, rubbing, and washing of the laundry.

Referring to FIG. 2, the lifter 100 may extend along a directionparallel to a rotational axis of the drum, and may be provided along aninner circumferential surface 22 of a drum body 21. A plurality oflifters 100 may be typically provided on the inner circumferentialsurface 22 of the drum, but when the lifters 100 are asymmetricallyprovided based on a rotational axis of the drum, vibration and noise mayoccur as the drum rotates, and thus the plurality of lifters 100 may bepreferably provided at predetermined angles around the rotational axisof the drum.

Referring to FIG. 3, the drum may include a front drum member 26, thedrum body 21, the lifter 100, a rear drum member 27, a balancer 25 a, 25b, and a spider 28, and when those members are sequentially coupled asillustrated in FIG. 3, they have a shape of drum in FIG. 2. Consideringthe role of each member constituting the drum disclosed in FIG. 3, thebalancer 25 a, 25 b may suppress vibration as the drum rotates, and thespider 28 may provide a rotational force of the drum. The lifter 100 maylift up and then drop laundry within the drum as disclosed above,thereby enhancing washing performance through a fall head.

As illustrated in FIG. 4, the lifter 100 may be formed by coupling afirst member (or lifter base) 110 to a second member (or lifter top)120, and the second member 120 may be located on the first member 110.The lifter 100 may have a streamlined or S-shape, and have a nonlinearstructure twisted by a predetermined angle. Through this, washing waterwithin the drum may more efficiently flow by the lifter 100 as the drumrotates.

First, the first member 110 will be considered through a lower endportion of FIG. 5 and FIG. 6. An upper surface of the first member 110is illustrated at a lower portion of FIG. 5, and a lower surface of thefirst member 110 is illustrated in FIG. 6. The first member 110 mayinclude a body 111, a hook portion (or hook) 112, a shielding portion(or shield) 113, a mounting hole 117, a washing water inlet hole 115 a,and a screw insertion hole 119.

The body 111 of the first member may form an entire structure of thefirst member 110, and may extend in a direction in parallel to arotational axis of the drum. The body 111 may also be provided on aninner circumferential surface 22 of the drum in parallel to therotational axis of the drum.

The first member 110 may include a washing water inlet portion (orwashing water inlet) 115. The washing water inlet portion 115 mayinclude a hole through the first member 110 to introduce washing waterinto the lifter 100. The washing water inlet portion 115 may overlapwith part of a hole formed on the drum.

The washing water inlet portion 115 may include a plurality of washingwater inlet holes 115 a. As illustrated in FIG. 5, the washing waterinlet holes 115 a may be separated from one another in a direction inparallel to a rotational axis of the washer drum, and may pass throughthe first member 110. Washing water may be introduced into the drum froma tub as the drum rotates during the washing process of the laundrytreating apparatus, and the washing water introduced through holesformed on the drum may be introduced into the lifter 100 through thewashing water inlet holes 115 a, respectively, overlapping with theholes formed on the drum.

The screw insertion hole 119 may be formed at one side of the firstmember 110 to be affixed to the drum. The first member 110 may be fixedto an inner surface of the drum through the screw insertion hole 119 byscrew fastening. The screw insertion holes 119 may be formed at bothends of the first member 110 as illustrated in FIG. 5, and the pluralityof screw insertion holes 119 may be located between the washing waterinlet holes 115 a of the first member 110. The screw insertion hole 119may have a typical shape into which a screw may be inserted.

Looking at a rear surface of the first member 110, the first member 110may include a mounting hole 117, a hook portion 112 and a shieldingportion 113. The mounting hole 117 may couple the first member 110 tothe second member 120, and a protruding portion (or tab) 123 of thesecond member 120 may be inserted into the mounting hole 117, therebycoupling the first member 110 to the second member 120.

Referring to FIG. 7, the mounting hole 117 may be formed along acircumference of the first member 110, and may have a correspondingshape to allow the protruding portion 123 of the second member 120 to beinserted thereinto. The mounting holes 117 may be located at a pluralityof positions along a circumference of the first member 110.

The hook portion 112 may protrude and be formed along a circumference ofa lower surface of the first member 110 to fix the first member 110 tothe drum. The hook portion 112 may have a shape of a ring portion tosupport one side of the drum when inserted and then may be slid asillustrated in FIG. 6.

The hook portion 112 may be inserted into a fastening hole located onthe drum, and then slid and fixed to the drum to support one side of thedrum. A plurality of hook portions 112 may be located along acircumference of the first member 110 as illustrated in FIG. 6, andlocated to face each other. The hook portion 112 may be bent toward acentral portion of the first member 110. The hook portion 112 may beinserted into a fastening hole 24 of the drum and then slid in onedirection, and at least part of the hook portion 112 may cover the innercircumferential surface 22 of the drum.

The shielding portion 113 may protrude from and be formed at an innerside of the first member 110 to cover a portion of the fastening hole.The shielding portion 113 may completely cover the fastening hole whenthe hook portion 112 is inserted into the fastening hole and then slidin one direction. The shielding portion 113 may be formed at a firstlateral side of the first member 110 to correspond to a rotationaldirection of the drum to prevent washing water from being dischargedthrough the fastening hole 24 of the drum. A plurality of shieldingportions 113 may be separated from one another along the first lateralside circumference portion of the first member 110 in a direction ofextending the first member 110.

A centrifugal force may be generated as the drum rotates, and theshielding portion 113 covering the fastening hole may be locatedrelatively far away based on a rotational direction of the drum. Thus,washing water accommodated in the lifter 100 may not be dischargeddespite rotation of the drum. In other words, as illustrated in FIG. 6,the shielding portion 113 may be formed only in one direction based on amajor axis passing through a center of the first member 110 having anelliptical shape.

The hook portion 112 protruding from and formed at an inner side of thefirst member 110 inserted into the fastening hole and slid in onedirection to cover only part of the fastening hole 24 of the drum may beformed at a second lateral side of the first member 110 at which theshielding portion 113 is not located. As illustrated in FIG. 6, theshielding portion 113 may not be formed at the second lateral side basedon the major axis of the first member 110. Accordingly, part of washingwater may be introduced into the lifter 100 through a portion of thefastening hole 24 of the drum. The first member 110 may be formed ofsynthetic resin, and for example, the first member 110 may be formed ofinjected plastic. However, the present disclosure may not be necessarilylimited to that material.

Considering the second member 120 through FIG. 5, the second member 120may include a body 121, the protruding portion 123 and a washing waterdischarge hole 125. The body 121 of the second member 120 may protrudefrom and be formed at an inside of the drum to accommodate washing waterin an inner space. The body 121 of the second member 120 may have anonlinear shape.

A plurality of protruding portions 123 may be formed along a lowercircumference of the body 121. The protruding portion 123 of the secondmember 120 may be inserted into the mounting hole 117 formed along acircumference of the first member 110, and thus the first member 110 maybe coupled to the second member 120. As illustrated in FIG. 5, theprotruding portion 123 may be formed at a lower portion of the body 121of the second member 120, and extend toward a lower portion from anupper portion.

The washing water discharge hole 125 may be located at an upper portionof the body 121 to discharge washing water accommodated in the body 121of the second member 120 from an outside of the drum, and formed in onedirection. Specifically, an upper surface 122 of the second member body121 extended along one direction may be located at an upper portion ofthe body 121 of the second member 120, and a plurality of washing waterdischarge holes 125 are formed on the upper surface 122 of the body 121of the second member 120. Washing water accommodated in the lifter 100may be discharged toward the drum through the washing water dischargeholes 125 to help wash the laundry accommodated within the drum.Furthermore, water usage during the washing process may be reduced bysupplying water into the drum through the lifter 100.

As illustrated in FIG. 7, part (a), the protruding portion 123 of thesecond member 120 may be inserted into the mounting hole 117 of thefirst member 110, and a plurality of protruding portions 123 formed onthe second member 120 may be inserted into a plurality of mounting holes117 formed on the first member 110 at the corresponding positions,thereby coupling the first member 110 to the second member 120. Asillustrated in FIG. 7, part (b), the protruding portion 123 of thesecond member 120 may be inserted into the mounting hole 117 of thefirst member 110 such that the first member 110 is located at an upperportion of the lifter and the second member 120 is located at a lowerportion of the lifter. Moreover, the protruding portion 123 of thesecond member 120 may be inserted into the mounting hole 117 of thefirst member 110 and protruded upward.

As illustrated in FIG. 7, part (c), the protruding portion 123 of thesecond member 120 inserted into the mounting hole 117 of the firstmember 110 may be bent to be fixed. The protruding portion 123 of thesecond member 120 inserted into the mounting hole 117 of the firstmember 110 and protruded upward may be bent to be coupled between thefirst member 110 and the second member 120. The protruding portion 123may be bent in an inward direction of the first member 110. In otherwords, the protruding portion 123 of the second member 120 may beinserted and then bent to the mounting hole 117 of the first member 110,thereby coupling the first member 110 to the second member 120.

As illustrated in FIG. 8, a plurality of fastening holes (or couplingholes) 24 to fix the lifter 100 may be located on the drum, and the hookportion 112 of the first member 110 of the lifter 100 may be insertedinto the fastening hole 24 of the drum and then slid. A screw may thenbe fastened to the screw insertion hole 119 located at upper and lowerportions of the first member of the lifter 100, thereby fixing thelifter 100 to the drum.

Referring to FIG. 9, part (a), the hook portion 112 of the first member110 may be inserted into the fastening hole 24 of the drum. The hookportion 112 of the first member 110 may be inserted into the fasteninghole 24 of the drum to fix the lifter 100 to the drum.

Referring to FIG. 9, part (b), the hook portion 112 may be slid. Thehook portion 112 of the first member 110 may be inserted into thefastening hole 24 of the drum, and then slid along an arrow direction onthe drawing. The hook portion 112 may have a shape of a ring portion tosupport one side of the drum, and the hook portion 112 may be slid tosupport one side of the drum and thus be more closely fixed to the drum.

Referring to FIG. 9, part (c), the hook portion 112 may be slid and thencoupled to the drum. As illustrated in the drawing, the hook portion 112may support the drum body 21. Specifically, the hook portion 112 of thefirst member 110 may cover at least part of outer and innercircumferential surfaces of the drum.

Referring to FIG. 9, part (d), a shape in which the lifter 100 iscoupled to an inner circumferential surface 22 of the drum is seen froman outside of the drum. As illustrated in the drawing, part of the drumbody 21 may be supported by each hook portion 112 located on the firstmember 110, and the shielding portion 113 of the first member 110 is maycover on a fastening hole on the left. The drum body 21 may be fixed tothe screw insertion hole 119 located on the first member 110 by screwfastening, thereby locating the lifter 100 on an inner circumferentialsurface of the drum.

Referring to FIG. 10, the lifter 100 and the drum may be coupled to eachother via the hook portion 112 of the first member 110 and screwfastening. The hook portion 112 of the first member 110 may support partof the inner circumferential surface 22 and outer circumferentialsurface of the drum, and may be coupled to the drum by inserting a screwinto the screw insertion hole 119 of the first member 110.

When each hook portion 112 of the first member 110 is inserted into eachfastening hole of the drum and then slid, the shielding portion 113 ofthe first member 110 may cover the fastening hole 24 of the drum. Theshielding portion 113 may completely cover the fastening hole when thehook portion 112 is inserted into the fastening hole and then slid inone direction, thereby preventing washing water from being discharged.The first member 110 having an elliptical shape has a major axis, andthe fastening hole may be completely covered through the shieldingportion 113 of the first member 110 on the left based on the major axis.

Looking at an enlarged view on the left in FIG. 10, the shieldingportion 113 may be located at a lower end of the hook portion 112 tocover the fastening hole 24 of the drum. The shielding portion 113 mayprotrude from and be formed toward an inner side of the first member 110along one side circumference of the first member 110, and the shieldingportion 113 may completely cover a corresponding fastening hole 24 ofthe drum to thereby prevent washing water introduced into the lifter 100through an opposing fastening hole 24 of the drum from being dischargedto an outside of the lifter 100.

Looking at an enlarged view on the right in FIG. 10, part of thefastening hole 24 of the drum may be exposed on the right based on themajor axis of the first member 110. The shielding portion 113 may not beformed on the right based on the major axis passing through a center ofthe first member 110, and thus a portion of the fastening hole may beexposed to an outside at a side on which the shielding portion 113 isnot formed, thereby introducing part of washing water into the lifter100 through that portion. For washing water flowing along an arrowdirection of FIG. 10, the washing water inlet hole 115 a and theshielding portion 113, formed to overlap with the fastening hole 24 ofthe drum, may not be located, and thus part of the washing water may beintroduced into the lifter 100 through part of the fastening holeexposed to an outside of the lifter 100.

Referring to FIG. 11, when the drum rotates, washing water may beintroduced into the drum from a tub surrounding the drum. The washingwater may be partly accommodated even in the lifter 100 attached to theinner circumferential surface 22 of the drum, and may pass through ahole of the drum and be discharged into the drum through the washingwater discharge hole 125 of the second member 120 through the washingwater inlet hole 115 a of the first member 110 overlapping with the holeof the drum. Alternatively, part of the washing water may be introducedinto the lifter 100 even through the fastening hole on which theshielding portion 113 is not located. An arrow in FIG. 11 indicates amoving direction of washing water.

Referring to FIG. 12, a plurality of lifters 100 may be provided alongthe inner circumferential surface 22 of the drum. Unless the lifters 100are not symmetrically arranged based on a rotational axis of the drum,there is a concern that noise and vibration may occur as the drumrotates, and laundry may not be uniformly lifted up and thus washing maynot be uniformly carried out on the entire laundry. Accordingly, aplurality of lifters 100 may be symmetrically located based on therotational axis of the drum as illustrated in FIG. 12. Laundry withinthe drum may be caught in the lifters 100 to be effectively lifted up toa predetermined height, and washing water within the drum may moreefficiently flow to enhance a washing effect.

The configurations and methods according to the above-describedembodiments will not be limited to the foregoing lifter 100 for alaundry treating apparatus, and configured to make various modificationsthereto. An object of the present disclosure is to propose a lifterhaving a structure capable of being attached to an inner surface of adrum.

Another object of the present disclosure is to propose a lifter having astructure capable of being firmly coupled to an inner surface of a drum.Still another object of the present disclosure is to propose a lifterhaving a structure capable of reducing washing water accommodatedtherein from being discharged through a fastening portion between a drumand a lifter.

A lifter for a laundry treating apparatus according to an embodiment ofthe present disclosure may include a first member mounted at an innerside of a drum; and a second member mounted on the first member andprotruded toward an inside of the drum, wherein the first memberincludes a hook portion protruded and formed along a circumference ofthe first member, at least part of which is disposed to cover an innercircumferential surface of the drum when inserted into a fastening holeof the drum and then slid in one direction; and a shielding portionprotruded and formed at an inner side of the first member and configuredto completely cover the fastening hole when the hook portion is insertedinto the fastening hole and then slid in one direction. The shieldingportion may be formed at one side of the first member to correspond to arotational direction of the drum to prevent washing water from beingdischarged through the fastening hole.

A plurality of shielding portions may be disposed to be separated fromone another along one side circumference of the first member. The otherside of the first member may protrude from and be formed at an innerside of the first member and configured to cover only part of thefastening hole when the hook portion is inserted into the fastening holeand then slid in one direction so as to allow the introduction ofwashing water.

The first member may include a washing water inlet portion formed tooverlap with part of a hole formed on the drum to introduce washingwater. The washing water inlet portion may include a plurality ofwashing water inlet holes disposed to be separated from one anotheralong a direction in parallel to a rotational axis of the washer drum.

A lifter for a laundry treating apparatus according to an exampleassociated with the present disclosure may include a first membermounted at an inner side of a drum; and a second member mounted on thefirst member and protruded toward an inside of the drum, wherein thesecond member includes a body protruded toward an inside of the drum toaccommodate washing water therein; and a plurality of protrusion potionslocated along a lower circumference of the body. Furthermore, aplurality of mounting holes into which protrusion portions of the secondmember are inserted to be coupled to the second member may be formed onthe first member along a lower circumference.

A protruding portion of the second member may be inserted into amounting hole of the first member and the protruding portion may be bentto couple the first member to the second member. The second member mayinclude a plurality of washing water discharge holes located at an upperportion of the body and formed along one direction to discharge washingwater accommodated in the body from an outside of the drum.

A screw insertion hole may be formed at one side of the first member tofix the first member to an inner surface of the drum with screwfastening. The first member may be formed of stainless steel, and thesecond member may be formed of plastic.

A laundry treating apparatus according to the present disclosure may beinserted into a fastening hole of the drum through a hook portion tosupport an inner circumferential surface of the drum to be coupled tothe drum, thereby preventing performance deterioration due to couplingto the drum. A laundry treating apparatus according to the presentdisclosure may prevent washing water accommodated within the lifter frombeing discharged to an outside by the shielding portion formed on thefirst member even when the drum rotates during the washing process, andthus prevent the unnecessary discharge of washing water and dischargethe washing water through the washing water discharge hole, therebymaintaining the performance of the lifter.

Hereinafter, a lifter for a laundry treating apparatus associated withthe present disclosure will be described in more detail with referenceto the accompanying drawings. Even in different embodiments according tothe present disclosure, the same or similar reference numerals aredesignated to the same or similar configurations, and the descriptionthereof will be substituted by the earlier description. Unless clearlyused otherwise, expressions in the singular number used in the presentdisclosure may include a plural meaning.

Any reference in this specification to “one embodiment,” “anembodiment,” “example embodiment,” etc., means that a particularfeature, structure, or characteristic described in connection with theembodiment is included in at least one embodiment. The appearances ofsuch phrases in various places in the specification are not necessarilyall referring to the same embodiment. Further, when a particularfeature, structure, or characteristic is described in connection withany embodiment, it is submitted that it is within the purview of oneskilled in the art to effect such feature, structure, or characteristicin connection with other ones of the embodiments.

Although embodiments have been described with reference to a number ofillustrative embodiments thereof, it should be understood that numerousother modifications and embodiments can be devised by those skilled inthe art that will fall within the spirit and scope of the principles ofthis disclosure. More particularly, various variations and modificationsare possible in the component parts and/or arrangements of the subjectcombination arrangement within the scope of the disclosure, the drawingsand the appended claims. In addition to variations and modifications inthe component parts and/or arrangements, alternative uses will also beapparent to those skilled in the art.

What is claimed is:
 1. A lifter for a laundry treating apparatus, thelifter comprising: a first body; and a second body coupled to cover thefirst body and protrude away from the first body to form a first spacebetween the first and second bodies, wherein the first body includes ahook that protrudes from a first surface of the first body that faces aninner circumferential surface of the drum, and the hook is configured tobe inserted into an attachment hole formed through the innercircumferential surface of the drum such that the first body is mountedto the inner circumferential surface of the drum.
 2. The lifter of claim1, wherein the first body includes a coupling groove having apredetermined depth and formed along a circumference of a second surfaceof the first body, and a lip of the second body is configured to beinserted into the coupling groove.
 3. The lifter of claim 2, wherein thesecond body comprises: a plurality of protrusion tabs that protrude fromthe lip of the second body, and wherein the second body has astreamlined shape.
 4. The lifter of claim 3, further comprising aplurality of mounting holes that are formed within the coupling groove,wherein each of the plurality of protrusion tabs is configured to beinserted into each of the plurality of mounting holes and then bent tocouple the first body to the second body.
 5. The lifter of claim 4,further comprising a screw insertion hole formed in the first body andthrough which a fastener is configured to be inserted to fasten thefirst body to the drum.
 6. The lifter of claim 5, wherein the hookcomprises a plurality of hooks, and each of the plurality of hooks isconfigured to be inserted into one of a plurality of attachment holes ofthe drum and then slid in an axial direction of the drum and positionedto contact the inner circumferential surface and an outercircumferential surface of the drum, respectively.
 7. The lifter ofclaim 6, wherein the first body comprises a shield that protrudes towarda center of the first body from the first surface of the first body, andwherein the shield is configured to cover the attachment hole when thehook is inserted into the attachment hole and then slid in the axialdirection of the drum.
 8. The lifter of claim 1, wherein the first bodyis made of plastic and the second body is made of stainless steel.
 9. Amethod of assembling a lifter for a laundry treating apparatus, themethod comprising: coupling a first body to a second body; attaching thefirst body and the second body coupled to each other to an innercircumferential surface of the drum; and fixing the first body to theinner circumferential surface of the drum.
 10. The method of claim 9,wherein during the coupling of the first body to the second body, aplurality of protrusion tabs that protrude from the second body areinserted into a plurality of mounting holes formed in a coupling groovehaving a predetermined depth and provided around a circumference of afirst surface of the first body, and the plurality of protrusion tabsare bent to couple the first body to the second body.
 11. The lifter ofclaim 10, wherein during the attaching of the first and second bodies tothe drum, a hook formed along a second surface of the first body facingthe inner circumferential surface of the drum is inserted into anattachment hole formed on the drum to contact the inner circumferentialsurface and an outer circumferential surface of the drum.
 12. The lifterof claim 11, wherein during the fixing of the first body to the drum, ascrew is inserted into a screw insertion hole formed in the first bodyfrom the outer circumferential surface of the drum so as to fix thefirst body to the inner circumferential surface of the drum.